Multiplying fractions

A fraction is a part of a whole. In the last lesson, friend learned just how to include and subtract fractions. But that’s no the only kind of math you have the right to do v fractions. There space times once it will be helpful to main point fractions too.

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Click v the slideshow to learn how to write a multiplication difficulty with fractions.

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Let's collection up a multiplication instance with fractions. Suppose you drink 2/4 of a pot the coffee every morning.

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But her doctor simply told you the you require to reduced down her coffee drink by half.

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Now you need to figure out just how much 1/2 the 2/4 of a pot the coffee is.

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This may not look like a multiplication problem. But when friend see the word of with fractions, it means you need to multiply.

To set up the example, we'll just replace the word of through a multiplication sign.

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Now our example is all set to it is in solved.

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Unlike continual multiplication, which gives you a larger number...

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Unlike constant multiplication, which gives you a larger number...multiplying fractions will certainly usually offer you a smaller number.

So as soon as we multiply 1/2 times 2/4...

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So once we multiply 1/2 times 2/4...our answer will be smaller than 2/4.

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Here's an additional example. Let's to speak you have actually 3/5 the a cup of cacao filling.

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You desire to placed an equal amount of pour it until it is full in every of this 4 cupcakes.

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You could say the you want to placed 1/4 the 3/5 of a cup of filling in every cupcake.

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Just like we go before, we'll adjust the word of into a multiplication sign.

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And now our fountain are prepared to be multiplied.

Try This!

Try setup up the multiplication trouble below. Don't worry around solving that yet!

A recipe calls for 2/3 of a cup that milk. You desire to cut the cooking recipes in half.


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Note: return our example says the correct answer is 2/3 x 1/2, remember, through multiplying bespeak does not matter. 1/2 x 2/3 would also be correct.

Solving multiplication difficulties with fractions

Now that we know exactly how to collection up multiplication difficulties with fractions, let's practice solving a few. If you feel comfortable multiplying whole numbers, you're prepared to multiply fractions.

Click with slideshow to learn how to multiply two fractions.

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Let's multiply to find 1/2 the 7/10.

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Just prefer we did earlier, we'll change the native of v a multiplication sign. Currently we're prepared to multiply.

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First, we'll main point the numerators: 1 and 7.

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1 times 7 equates to 7, therefore we'll create 7 come the ideal of the numerators.

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When us added fractions, the denominators remained the same. But when us multiply, the denominators obtain multiplied too.